^{Country & Region / Prefecture}

Japan, Kantō / Tōkyō

^{Volcano Types}

Submarine, Caldera

Dacite

^{Tectonic Setting}

Subduction Zone

Oceanic Crust (< 15 km)

^Summit

-114 m

^{Latitude, Longitude}

33.4°N, 139.68°E

^{Last Known Eruption}

Unknown - Evidence Uncertain